Saw-leveling machine



June 1 1926.` 1,587,357 W. .ALLEN 4 SAW LEVELING MAGHINE Filed 01st` 1'?, 1925 2 sheets-sheet' 1 WITNESS:

June l 1926.

NTQR W' AATTORNEY @patented lune l, i926,

tienta-ti s WILLIAM Annan, or Watson, Miss-restart, nssrciien or cnn-HALF "ro Jenn E. JONES, 'or WILSON, mtrssIssiP'PI.

SAW-LEVELING MACHINE A'p'pli'aiin mea obtener 17, ities. "-s'ei'a'i no. 63,129.

This invention contemplates vthe provisin ot :a ydevice A"for removing; crimps `or fthe like 'trom bandsaws., and lthus accomplish this duty in lacuicker and'less 'laborious manner than by lthe usual custo'in ot hammeringjthe saiv, `which is not only a slow method, but one which ltreeluentl'y injures 'the `smv and materiallyflessens liie. V

lore specifically stated ,Y the Ainvention coin ten'iplatesthe se ot spaced "series et "rolls, with the rolls ci one vserieslst'aggered with .relatidii lto the rolle 'of 'the other series, so tliat as tlie awfbaiid pa `les between the respet yive seriesthe ',ritlgjtes, erinips or other irregularities dre pressed out, thus 'providingr `the saiv Ibund ivitli perfectly 'flat sides.

The iiat'iire and advantages et VV the invention will bebetter understood wvlien the following detailed description kis read 'in conn-edtidn ivith the accompanying drawing, the invention residing'` lin ithe `constriicti'on, conibination j"and arrangement `df parts 4.as claimed. I l Y l in the dra-Wing forming` partei lthis application, like iiuinerals ot freference indi crte similiar fparts in theseveral views, and ywherein: y l y,

'Figure `1 is a view in elevation andfpartly in section oitliedevice iiorming'the subject n'iat ter of 'the present 1invention. v

yltiure 2 is a sectional view on line/2 2 etlFigur-e "1. y y v lligurie 8 fis a vieivo't thegearing.

Fivure l is'lan enlarged ragg'ineiitary vieiv olf `the Zrolls"oiilthe respective series 'showing the saw band inl section and arranged between said series. l i

Figure 5 is a .sectional vievv showing how the rolls aremounted upon a shaft.

The device forming the subject matter ot the present invention essentially embodies a pair of spaced parallel shafts lO and 11 respectively, und carried by these shaitts ad-r jacent their ends are gears 12. The shaft 1U adapted to be rotated by any suitable power, und is equipped with belt pulley 13 for this purpose, and inasmuch as the gears 12 of said shafts mesh with. each other, it .manifest that the shaft 10 is rotated from the shaft 11 with the saine speed. Keyed or otherwise suitably secured to each shaft is a series ot' spaced rolle 14, each roll being provided nitii a convexed periphery, While it W'll be noted that the rolls of one series arranged in staggered; relation Witli-v the -`ess the latter, and straighten the "saw "at this. point. The crimped por'ien 15 is, Qifcourse, depressed by, the pressure exerted t'lier'e'vnfby the fad- ]aceiit 'rollfziird tli is can bei 'easilyL vndiquickly accomplished inasmuch as kthe crimped port-in lies no resistance :troiiifany'oi: lthe rolls oit' `the other series, diiefto fthe :staggered relatin ci -the lllS iabve mentioned, The elasticity 'eff the band Ysafwjvvill carre the slight "depression caused "by [the roll to spring "upwardly yto the levelfand inasmuch asltliis proceslsdfeals u litli boths'i'des tlife saw at the sanientiine, the'savvrbandcanbe quickly and ciivenien relieved "poi its :irregularities "without :injury rto tlieV saw, The respective series Vrolls only eftert suiiicient preesiire upon "the saw :band itocau'se 4the lsaw to travel between said rolls, I"and therefore dii-es knot haveany ettectupon the. band so as totiiifanylivay 'stretht'he latter. vllt vill'nt in anyway lalter thetemper of the fsaufjband steel, and it Will relieve vtlie siaivvbaiidof all ridges v"and irregularities, irrespective oi what direction they Arunjontlie 'saut A"FurN "therinore, theste l 'i"s-'1it yin any Way injured or ldeformed ivliile between Ithe rolls, :so that the vlatter `donot "in any ivay detract from the lite or elasticity o't the saw band.

The shafts 10 and 11 are arranged one above the other, and may be mounted on any suitable traine for the purpose intended, but I preferably makey use of a supporting structure of the character illustrated in the drawing. This frame consists of a rela tively `stationary part 17 and a relatively' movable part 18, the latter being pivoted as at 19 upon the stationary part as shown in Figure 1. The shaft 10 is journaled in the stationary part While the shaft 11 is journaled in the movable part, which, of course, allows the latter mentioned part and the .shaft 11 to be spaced a sutcient distance from theshaft 10 when it is desired to place the saw band between the respect-ive series of rolls for the purpose above mentioned. When the movable part 18 of the frame has been lowered to the position shown in Figure 1, it is held in this position by means of a suitable clamp indicated generally at 20, a stop pin or screw 21 beingl carried by the part 18 and adapted to contact the stationary part 17 to hold said rolls properly spaced. rlhe shaft- 11 is journaled in a carriage or support 29 which forms part of the movable section 18 of'the frame, but susceptible of independent movement with relation thereto, so that the shaft 11 may be slightly adjusted with relation to the shaft 10 to vary the pressure exerted upon the saw band, as will be readily understood. This adjustment is accomplished by the use of a screw 23 threaded through the movable part 18 of the frame and having its lower end bearing against the adjustable carriage 22, the screw being` adjusted through the instrumentality of a suitable lever 24. Loosely mounted upon the screw 23 is a collar 25 from which projects arms 26, each of the latter having an opening to receive one of the guide pins 27 arising from the carriage 22 and Slidable through the openings in the movable section 1S of the frame. It is manifestthat I have devised a means whereby a saw ban-d can be easily positioned between the rolls of the respective series, and fed through said rolls to relieve the saw band of ridges or other irregularities with 4a minimum of time and effort.

`While it is believed that from the foregoing description the nature and advantages of the invention will be readily apparont, I desire to have it understood that I do not limitmyself to what is herein shown and described, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

Having thus described the invention, what is claimed as new, is

1. A device of the character described comprising,` a frame-like supporting structure including a stationary section, and a movable section pivoted at one end upon the stationary section and adapted to lie parallel therewith, a shaft journaled in each section with sai-d shafts arranged one above the other, a series of spaced rolls carried by each shaft, with the rolls of one shaft arranged in staggered relation with the rolls of the other shaft, a yoke-like clamp for holding the respective sections of the supporting structure parallel, and means carried by the movable section for spacing the latter the desired distance from the stationary section for the purpose specified.

2. A device of the character described comprising` a frame-like structure including a stationary section, and a movable section pivoted at one end upon the stationary section, said movable section having a longitudiiially disposed recess, a carriage slidably arranged in said recess, a shaft journaled in the stationary section, a second shaft journal-ed in said carriage, means for adjusting` said carriage to move the shaft thereon toward and away from the first mentioned shaft, and a .series of spaced rollers carried by each shaft, with the rolls on one shaft arranged in staggered relation with the rolls of the other shaft.

A device of the character described comprising` a frame-like structure including a stationary section, and a movable section pivoted on one end of the stationary section, a shaft journaled in the stationary section, said movable section having` a recess longitudinally thereof, a carriage slidably mounted in said recess, a shaft journaled in said carriage and arranged above the rst mentioned shaft, gears carried by correspending' ends of said shafts and meshing with each other, a threaded element carried by the movable section and associated with said carriage to adjust the latter, guide pins on v,f'bich said carriage moves, and a lever for operating` said threaded element.

In testimony whereof I alliz; my signature.

WILLIAM ALLEN. 

